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Chapter 1 — ISDN Basic Rate Interface
Page 11 of 492
Option 11C
ISDN BRI Administration and Maintenance
ISDN BRI Packet Data Transmission
Packet switching differs from circuit switching in that the content of the call
is switched rather than the call itself. The message that is being transmitted is
broken down into packets that are then sent to their destination through the
fastest route.
The Option 11 supports both B-channel and D-channel packet data
transmission.
B-Channel packet data transmission - Data is transmitted over dedicated
connections (configured in the data base for packet data transmission) from
the SILC or UILC line card to a PRI card, and then over PRI B-Channels to
an external packet data handler (DPN-100).
D-Channel packet data transmission - D-Channels can be used for both
signaling and packet data transmission. Packet data and signaling information
is transmitted over dedicated connections from the UILC or SILC line card to
the MISP where the signaling information is separated from the packet data.
The data is then transmitted over dedicated connections to a PRI card, and
then over PRI B-Channels to an external packet data handler (DPN-100).
Northern Telecom's Data Packet Network (DPN-100) is used as an external
packet handler to process the D-channel packet data sent by the MISP over a
dedicated PRI B-channel, and the B-channel packet data sent from SILCs and
UILCs.
Figure 6 illustrates the Option 11 packet data flow diagram showing the
B-channel and the D-channel packet data routes starting at the SILC and
UILC line cards and arriving at the external packet handler through dedicated
connections and PRI B-channels.
Содержание Meridian 1 Option 11C
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Страница 14: ...Page x About this guide 553 3011 311 Standard 7 0 May 1999...
Страница 152: ...Page 138 of 492 Chapter 3 Feature packaging and prerequisites 553 3011 311 Standard 7 0 May 1999...
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Страница 318: ...Page 304 of 492 Chapter 6 ISDN BRI trunk implementation 553 3011 311 Standard 7 0 May 1999...
Страница 434: ...Page 420 of 492 Chapter 8 Service changes and maintenance 553 3011 311 Standard 7 0 May 1999...
Страница 446: ...Page 432 of 492 Chapter 9 ISDN BRI traffic reports 553 3011 311 Standard 7 0 May 1999...
Страница 492: ...Page 478 of 492 Appendix A 2Mb PRI implementation 553 3011 311 Standard 7 0 May 1999...